﻿#region license

// Copyright (c) 2021, andreakarasho
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// 1. Redistributions of source code must retain the above copyright
//    notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
//    notice, this list of conditions and the following disclaimer in the
//    documentation and/or other materials provided with the distribution.
// 3. All advertising materials mentioning features or use of this software
//    must display the following acknowledgement:
//    This product includes software developed by andreakarasho - https://github.com/andreakarasho
// 4. Neither the name of the copyright holder nor the
//    names of its contributors may be used to endorse or promote products
//    derived from this software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

#endregion

using System.IO;
using System.Text.RegularExpressions;
using ClassicUO.Utility.Logging;
using TinyJson;

namespace ClassicUO.Configuration
{
    internal static class ConfigurationResolver
    {
        public static T Load<T>(string file) where T : class
        {
            if (!File.Exists(file))
            {
                Log.Warn(file + " not found.");

                return null;
            }

            string text = File.ReadAllText(file);

            text = Regex.Replace
            (
                text,
                @"(?<!\\)  # lookbehind: Check that previous character isn't a \
                                                \\         # match a \
                                                (?!\\)     # lookahead: Check that the following character isn't a \",
                @"\\",
                RegexOptions.IgnorePatternWhitespace
            );

            T settings = text.Decode<T>();

            return settings;
        }

        public static void Save<T>(T obj, string file) where T : class
        {
            // this try catch is necessary when multiples cuo instances points to this file.
            try
            {
                File.WriteAllText(file, obj.Encode(true));
            }
            catch (IOException e)
            {
                Log.Error(e.ToString());
            }
        }
    }
}